Phonecell SX4D Operation - continued

Phonecell SX4D Normal Mode

-continued

Direct Readout Mode displays the signal strength as "-XXXDBM", where XXX refers to the signal strength. The factory setting is the Direct Readout Mode. This setting is field programmable - see the Phonecell SX4D Programming section of this manual.

Signal Strength Bar Graph displays the signal strength as a series of solid block characters. The stronger the signal, the more characters are illuminated from left to right.

NOTE: The 12th character (from left to right) is used as a separator only and does not pro- vide information - see Figure 15. A "" char- acter is displayed and is always illuminated.

In-Use Indicator

The In-Use Indicator displays a “U” in the 14th character position when the Phonecell SX4D is in use (i.e. call data is sent to the cellular base station). The 14th character remains blank when the Phonecell SX4D is not in use.

Cellular Service Indicator

The Cellular Service Indicator displays the cellular status in the 15th character position with the following:

N = No service

L = Limited (non-registered) service

S = Service

R = Roaming

In-Use

Indicator

Received

Signal Strength

Figure 15 – Phonecell SX4D LCD - Alpha Row.

Cellular Service

Indicator

Alpha

Row

SX4D GSM 900 • SX4D GSM 1800

21

USER MANUAL

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Telular SX4D user manual Cellular Service Indicator, In-Use Indicator Received Signal Strength